Datasheet
TPS2041B-Q1
TPS2042B-Q1
TPS2051B-Q1
SLVS782B –NOVEMBER 2007–REVISED OCTOBER 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating junction temperature range, V
I(IN)
= 5.5 V, I
O
= 0.5 A, V
I(ENx)
= 0 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
(1)
MIN TYP MAX UNIT
Power Switch
Static drain-source on-state
resistance, 5-V or 3.3-V V
I(IN)
= 5 V or 3.3 V, I
O
= 0.5 A –40°C ≤ T
J
≤ 125°C 70 135
operation
r
DS(on)
mΩ
Static drain-source on-state
V
I(IN)
= 2.7 V, I
O
= 0.5 A –40°C ≤ T
J
≤ 125°C 75 150
resistance, 2.7-V operation
(2)
V
I(IN)
= 5.5 V 0.6 1.5
t
r
Rise time, output
(2)
V
I(IN)
= 2.7 V 0.4 1
C
L
= 1 μF,
T
J
= 25°C ms
R
L
= 10 Ω
V
I(IN)
= 5.5 V 0.05 0.5
t
f
Fall time, output
(2)
V
I(IN)
= 2.7 V 0.05 0.5
Enable Input (EN, ENx )
V
IH
High-level input voltage 2.7 V ≤ V
I(IN)
≤ 5.5 V 2 V
V
IL
Low-level input voltage 2.7 V ≤ V
I(IN)
≤ 5.5 V 0.8 V
I
I
Input current V
I( ENx )
= 0 V or 5.5 V –0.5 0.5 μA
t
on
Turn-on time
(2)
C
L
= 100 μF, R
L
= 10 Ω 3 ms
t
off
Turn-off time
(2)
C
L
= 100 μF, R
L
= 10 Ω 10 ms
Current Limit
T
J
= 25°C 0.65 1 1.25
V
I(IN)
= 5 V, OUT connected to GND,
I
OS
Short-circuit output current A
device enabled into short-circuit
–40°C ≤ T
J
≤ 125°C 0.6 1 1.3
Supply Current (TPS2041B/TPS2051B)
T
J
= 25°C 0.5 1
No load on OUT,
Supply current, low-level output μA
V
I(EN)
= 5.5 V or V
I(EN)
= 0 V
–40°C ≤ T
J
≤ 125°C 0.5 5
T
J
= 25°C 43 60
No load on OUT,
Supply current, high-level output μA
V
I(EN)
= 0 V or V
I(EN)
= 5.5 V
–40°C ≤ T
J
≤ 125°C 43 70
OUT connected to ground,
Leakage current –40°C ≤ T
J
≤ 125°C 1 μA
V
I(EN)
= 5.5 V or V
I(EN)
= 0 V
Reverse leakage current V
I(OUTx)
= 5.5 V, IN = ground
(2)
T
J
= 25°C 0 μA
Supply Current (TPS2042B)
No load on OUT, V
I(
T
J
= 25°C 0.5 1
ENx
Supply current, low-level output μA
)
–40°C ≤ T
J
≤ 125°C 0.5 5
= 5.5 V
No load on OUT, V
I(
T
J
= 25°C 50 70
ENx
Supply current, high-level output μA
)
–40°C ≤ T
J
≤ 125°C 50 90
= 0 V
OUT connected to ground, V
I(
ENx
Leakage current –40°C ≤ T
J
≤ 125°C 1 μA
)
= 5.5 V
Reverse leakage current V
I(OUTx)
= 5.5 V, IN = ground
(2)
T
J
= 25°C 0.2 μA
Undervoltage Lockout
Low-level input voltage, IN, INx 2 2.5 V
Hysteresis, IN, INx T
J
= 25°C 75 mV
Overcurrent (OC,
OCx )
Output low voltage, V
OL(/OCx)
I
O( OCx )
= 5 mA 0.4 V
Off-state current
(2)
V
O( OCx )
= 5 V or 3.3 V 1 μA
OC deglitch
(2)
OCx assertion or deassertion 4 8 15 ms
(1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be accounted for separately.
(2) Specified by design
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